package com.lct.create;

public class ArrayDemo2 {
    public static void main(String[] args) {
        //数组的访问
        int[] arr = {12,24,36};


        System.out.println(arr[1]);

        arr[1] = 90;

        System.out.println(arr[1]);

        System.out.println(arr.length);
    }
}
